CN104473657A - Supporting unit, supporting device and emission imaging device with supporting device - Google Patents
Supporting unit, supporting device and emission imaging device with supporting device Download PDFInfo
- Publication number
- CN104473657A CN104473657A CN201410631706.8A CN201410631706A CN104473657A CN 104473657 A CN104473657 A CN 104473657A CN 201410631706 A CN201410631706 A CN 201410631706A CN 104473657 A CN104473657 A CN 104473657A
- Authority
- CN
- China
- Prior art keywords
- fixture
- support unit
- support
- spatial accommodation
- detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/037—Emission tomography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
Abstract
The invention provides a supporting unit, a supporting device and an emission imaging device with the supporting device. The supporting unit comprises a supporting main body and a plurality of fixing devices. An accommodating space penetrating through the supporting main body is arranged in the supporting main body, and the supporting main body comprises a plurality of supporting positions which are in circumferential direction along the accommodating space. The fixing devices are connected onto at least one part of the supporting positions, at least one part of the fixing devices move at the contracting position and the extending position along the radial direction of the accommodating space, and the fixing devices are used for fixing a detector of the emission imaging device. When at the contracting position, the fixing devices are used for forming a first detector fixed ring with a first diameter; when at the extending position, the fixing devices are used for forming a second detector fixed ring with a second diameter which is smaller than the first diameter. The emission imaging device with the supporting unit can adjust at least the radial length of a detection cavity, therefore a large stereoscopic space angle can be obtained, and further the detection sensitivity can be improved.
Description
Technical field
The present invention relates to medical instruments field, particularly, relating to a kind of support unit for launching imaging device, comprising the fastening of this support unit and adopting the transmitting imaging device of this fastening.
Background technology
Such as Positron emission tomography (Positron Emission Tomography, PET) and the transmitting imaging technique of single photon emission computed cross-sectional imaging (Single-Photon Emission Computed Tomography, SPECT) etc. be used to the fields such as medical diagnosis, pathological research, pharmaceutical research, drug development.
For Positron emission tomography technology, in its positron and human body of utilizing positron isotopes to decay to produce, negatron is die out the phenomenon of effect, by injecting radiotracer (such as with the compound of positron isotopes labelling) in human body, detector is utilized to detect the γ photon that effect produces of dieing out, obtain isotopic distributed intelligence in human body, carry out reconstruction combinatorial operation by computer, thus obtain the three-dimensional tomographic image of human body internal labeling compound distribution.
Detection sensitivity is medical transmitting imaging system, such as whole body PET system, one of most important parameters.Detection sensitivity represents the ability that system obtains useful signal data, is the important indicator ensureing system reconstructing image spatial resolution.Clinically, higher detection sensitivity is conducive to dosage, the reduction imaging time of reduction radiotracer and improves signal to noise ratio.Launch the detection sensitivity of imaging system depend on geometrical efficiency and intrinsicly meet event detection efficiency.Wherein, geometrical efficiency depends on the solid space angle that detector module is surrounded.
At present, launch imaging system and still adopt traditional common Design Mode, each detector module performance is basically identical, consistent size, and launches imaging system once build, detector module will for good and all maintain static, and which limit detection sensitivity in some cases.For example, when adopting the transmitting imaging system being suitable for Whole Body to carry out imaging to child or toy, detection sensitivity can be caused to reduce.
Summary of the invention
In order to solve the less problem of the transmitting imaging system suitability that exists in prior art, the invention provides a kind of support unit for launching imaging device, comprising the fastening of this support unit, and adopting the transmitting imaging device of this fastening.
According to an aspect of the present invention, a kind of support unit for launching imaging device being provided, comprising:
Supportive body, is provided with the spatial accommodation running through described supportive body in it, described supportive body comprises multiple Support Positions that the circumference along described spatial accommodation distributes;
Multiple fixture, it is connected to the place at least partially in described multiple Support Position, the radial direction at least partially along described spatial accommodation in multiple fixture is removable between punctured position and extended position, and described fixture is used for the detector of fixed transmission imaging device
For the formation of the first detector retainer ring with the first diameter when wherein said fixture is in described punctured position, and for the formation of the second detector retainer ring with Second bobbin diameter when being in described extended position, wherein said first diameter is greater than described Second bobbin diameter.
Preferably, when described fixture is in described punctured position, the described fixture on the multiple described support unit that the axis along described spatial accommodation can be made to be arranged side by side forms described first detector retainer ring.
Preferably, when described fixture is in described extended position, the described fixture be positioned on same supportive body can be made to form described second detector retainer ring; Or the described fixture on the multiple described support unit making the axis along described spatial accommodation be arranged side by side forms described second detector retainer ring.
Preferably, the spaced apart setting of described fixture, to make in the Support Position of every predetermined quantity only corresponding Support Position place be connected with described fixture.
Preferably, described multiple Support Position is set to when the described support unit of predetermined quantity is arranged side by side along the axis of described spatial accommodation, the Support Position on different support units is arranged alternately with mutually staggering along described circumferential direction, makes the described fixture on the described support unit of described predetermined quantity alternately can form described first detector retainer ring.
Preferably, described multiple Support Position is set to make the Support Position on different support units arrange according to identical sequence alternate when the described support unit of described predetermined quantity is arranged side by side along described axis.
Preferably, described predetermined quantity is for closing number, described extended position is u, wherein u is the number not comprising the prime factor of 1 of described conjunction number, the individual described extended position of u is arranged along the radial direction of described spatial accommodation, and each inverse that u described extended position equals in u prime factor respectively to the distance at the center of described spatial accommodation is multiplied by r, wherein r is described fixture distance to the center of described spatial accommodation when being in described punctured position.
Preferably, described predetermined quantity is 2
n, wherein n be more than or equal to 2 integer, described extended position is n, and n described extended position to the distance at the center of described spatial accommodation equal respectively r/2, r/4 ... r/2
n.
Preferably, described supportive body has the platy structure of rectangle.
Preferably, described supportive body is provided with guide through hole, described guide through hole is for guiding described support unit along the movement of the axis of described spatial accommodation.
According to another aspect of the present invention, a kind of fastening for launching imaging device being provided, comprising:
Multiple any one support unit as above, multiple described support unit is arranged side by side along the axis of described spatial accommodation, and multiple described spatial accommodation forms the container cavity for holding detector and object to be detected.
Preferably, described fastening also comprises guiding device, and described guiding device is for making axially movable along described spatial accommodation of multiple described support unit.
Preferably, described guiding device comprises the axis guide rail arranged and the guide through hole be arranged on described supportive body along described spatial accommodation, and described guide through hole is located on described guide rail, moves along described guide rail to guide described support unit.
Preferably, when described supportive body has the platy structure of rectangle, described guiding device comprises four described guide rails and is arranged on four described guide through hole at four drift angle places of each described supportive body.
Preferably, described fastening also comprises:
Elastic buffering mechanism, described elastic buffering mechanism is arranged between adjacent described support unit, for applying equal elastic force to the described support unit at its two ends.
Positioner, described positioner is used for the described support unit in axially location at described spatial accommodation.
According to a further aspect of the invention, provide a kind of and launch imaging device, comprising:
Any one fastening as above; And
Detector, its at described container cavity internal fixtion in described fixture.
Adopt the transmitting imaging device that support unit provided by the invention is built, the at least radical length of test chamber can be made adjustable, therefore can be formed as required and there is relatively wide-aperture test chamber, such as adult, or form the test chamber with relatively small-bore, such as, for child or toy, therefore compared with existing transmitting imaging device, relatively large solid space angle can be obtained, and then effectively improve the detection sensitivity of launching imaging device.
In summary of the invention, introduce the concept of a series of reduced form, this will further describe in detailed description of the invention part.Content part of the present invention does not also mean that the key feature and essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain attempting to determine technical scheme required for protection.
Below in conjunction with accompanying drawing, describe advantages and features of the invention in detail.
Accompanying drawing explanation
Following accompanying drawing of the present invention in this as a part of the present invention for understanding the present invention.Shown in the drawings of embodiments of the present invention and description thereof, be used for explaining principle of the present invention.In the accompanying drawings,
Fig. 1 is the schematic diagram of bracing or strutting arrangement according to an embodiment of the invention;
Fig. 2 A-2B is respectively the schematic diagram that support unit is according to an embodiment of the invention in different conditions, and wherein Fig. 2 A shows fixture and is all in punctured position, and Fig. 2 B part shown in fixture is in extended position;
Fig. 3 A-3B is respectively the schematic diagram of support unit according to another embodiment of the present invention, and wherein fixture is in punctured position;
Fig. 3 C-3D is respectively the front view and side view that the support unit shown in Fig. 3 A-3B fits together, and wherein fixture is in punctured position;
Fig. 3 E-3F is respectively the schematic diagram of the support unit shown in Fig. 3 A-3B, and wherein fixture is in extended position;
Fig. 3 G-3H is respectively the front view and side view that the support unit shown in Fig. 3 E-3F fits together, and wherein fixture is in extended position;
Fig. 4 is the schematic diagram of the support unit according to further embodiment of this invention;
Fig. 5 A-5B is respectively the schematic diagram of support unit according to an embodiment of the invention;
Fig. 6 is the simple schematic diagram of support unit according to an embodiment of the invention;
Fig. 7 is the side view of fastening according to an embodiment of the invention, and wherein fixture is not coupled and is in punctured position;
Fig. 8 A-8B is side view and the front view of fastening according to an embodiment of the invention, and wherein fixture is coupled and is in punctured position;
Fig. 9 is the side view of fastening according to an embodiment of the invention, and wherein fixture is not coupled and is in extended position; And
Figure 10 A-10B is side view and the front view of fastening according to an embodiment of the invention, and wherein fixture is coupled and is in extended position.
Detailed description of the invention
In the following description, a large amount of details is provided the present invention can be understood up hill and dale.But those skilled in the art can understand, following description only relates to preferred embodiment of the present invention, and the present invention can be implemented without the need to one or more such details.In addition, in order to avoid obscuring with the present invention, technical characteristics more well known in the art are not described.
Traditional transmitting imaging device is once building, and the size of its all directions is all fixing.The invention provides a kind of support unit (hereinafter referred to as support unit) for launching imaging device and comprise the bracing or strutting arrangement of this support unit, adopt this bracing or strutting arrangement can provide the one transmitting imaging device that at least radical length (i.e. aperture) is variable.In a preferred embodiment, the transmitting imaging device that radical length and axial length can also be provided all variable.Described transmitting imaging device can be such as Positron emission tomography (PET) equipment and single photon emission computed cross-sectional imaging equipment (SPECT), is preferably Positron emission tomography (PET) equipment.This system according to the size of object to be detected (comprising people or laboratory animal) build, can adjust the aperture or aperture and axial length of launching imaging device, to reach the object obtaining optimum detection sensitivity.
Fig. 1 shows bracing or strutting arrangement 100 in accordance with a preferred embodiment of the present invention.Bracing or strutting arrangement 100 comprises multiple support unit, and such as 111,112,113 and 114, these support units 111,112,113 and 114 can have identical structure or different structures, are hereinafter described in detail to the structure of support unit.It should be noted that, the quantity of the support unit shown in figure is only schematic, and it is intended to explain principle of the present invention.In reality, the quantity of support unit can be selected according to the axial dimension of object to be detected and to factors such as the requirements of detection sensitivity.
Fig. 2 A-2B is respectively the schematic diagram that support unit is according to an embodiment of the invention in different conditions, and wherein Fig. 2 A shows fixture and is all in punctured position, and the part that Fig. 2 B shows in fixture is in extended position.Specifically see Fig. 2 A-2B, support unit 200 comprises supportive body 210 and fixture 240.
The spatial accommodation 220 running through supportive body 210 is provided with in supportive body 210.Supportive body 210 can be made up of such as aluminum, steel, stainless metal material or the plastic material etc. with sufficient intensity.The cross sectional shape of supportive body 210 is not limited to the rectangle shown in Fig. 2 A-2B, it can also be circle, ellipse, triangle, pentagon, hexagon, heptagon etc., can also be even irregularly shaped, as long as spatial accommodation 220 can be formed and the condition that will discuss below meeting in this supportive body 210.This spatial accommodation 220 by for the formation of the container cavity holding detector and object to be detected, as will be described.Spatial accommodation 220 can be the space of cylindrical space, cuboid (or square) space, polygon prism space, cylindroid space or other arbitrary shapes.As long as this spatial accommodation 220 can form above-mentioned container cavity when multiple support unit is arranged side by side vertically.The embodiment being only cylindrical space with reference to spatial accommodation 220 in accompanying drawing illustrates principle of the present invention.
It should be noted that, direction mentioned in this article term " axis ", " radial direction " and " circumference " are all relative to spatial accommodation, particularly, " axis " refers to that spatial accommodation runs through direction, such as, arrow A indicated direction shown in Fig. 1 on supportive body; " radial direction " refers to the direction that the cross section vertical with axis of spatial accommodation is extended by the center of spatial accommodation, such as, arrow R indicated direction shown in Fig. 1; " circumference " refers to the direction around spatial accommodation in the described cross section vertical with axis.
In addition, supportive body 210 comprises multiple Support Positions that the circumference along spatial accommodation 220 distributes, such as 230A and 230B.These Support Positions 230A and 230B is used for making fixture 240 be arranged on this place.Exemplarily, each Support Position 230A and 230B place can be connected to fixture 240A and 230B.In the embodiment that will describe later, can only make the part in Support Position for being connected and fixed device.
Fixture 240A and 240B is connected to the place at least partially in multiple Support Position 230A and 230B movably between punctured position (as shown in Figure 2 A) and extended position (as shown in Figure 2 B) along the radial direction of spatial accommodation 220.Fixture 240A and 240B preferably adopts dismountable mode to be connected to Support Position place.Certainly, fixture 240A and 240B also can unremovably be connected to Support Position place.In one embodiment, supportive body 210 corresponds to Support Position part and can be provided with the groove of opening towards the center of spatial accommodation, fixture 240 is connected to groove movably along the opening direction of this groove.Need can adopt auxiliary securing member, such as fastening bolt etc. when fixture 240 being fixed on punctured position and extended position.In another embodiment, the slideway radially extended can be adopted to replace groove, fixture 240A is connected along this slideway movably with 240B.The present invention is also not intended to limit the removable connected mode of fixture 240A and 240B and supportive body 210, except two kinds of embodiments mentioned above, other modes that are known in the art or that may occur future can also be adopted to realize the removable connection between them.
Fixture 240A and 240B is used for the detector of fixed transmission imaging device, and detector is divided into two groups in this embodiment, and adopts in two ways, and the legend mode of namely not filling and filling shade represents two groups of detectors and corresponding two groups of fixtures respectively.Wherein, unfilled one group of detector and fixture are denoted as 250A and 240A respectively, and one group of detector and the fixture of filling shade are denoted as 250B and 240B respectively.And for convenience, Support Position being also divided into two groups in this embodiment, the Support Position of corresponding detector 250A is denoted as 230A, and the Support Position of corresponding detector 250B is denoted as 230B.It should be noted that, the basic indifference of detector of different group, more convenient when grouping is here only in order to describe fixture mobile later.
When fixture 240A and 240B is all in punctured position, as shown in Figure 2 A, fixture 240A and 240B is for the formation of the first detector retainer ring with the first diameter.Detector 250A and 250B on this first detector retainer ring defines has relatively wide-aperture detection ring.When multiple support unit is in axial direction arranged side by side as illustrated in fig. 1, can be formed and have relatively wide-aperture test chamber (cavity surrounded by detector), the object to be detected (being such as grown up) that volume is larger can enter image data in this test chamber.
When fixture 240A (or 240B) is in extended position, for shown in Fig. 2 B, fixture 240A is for the formation of the second detector retainer ring with Second bobbin diameter, wherein the first diameter is greater than Second bobbin diameter.Detector 250A on this second detector retainer ring defines the detection ring with relatively small-bore.When multiple support unit is in axial direction arranged side by side as illustrated in fig. 1, can form the test chamber with relatively small-bore, the object to be detected (such as child or toy) of small volume can enter image data in this test chamber.
In this embodiment, because the fixture of only half quantity enters extended position, the quantity of the detector be therefore now on detection ring decreases half.The aperture of the detection ring of such formation is approximately the half in the aperture of detection ring when fixture is all in punctured position.Be appreciated that in the case, the quantity of Support Position, the quantity of fixture are preferably even number.In the illustrated embodiment, fixture group 240A can be only made to be connected to Support Position 230A movably, to simplify the structure of support unit.Otherwise, also can only make fixture group 240B be connected to Support Position 230B movably.Certainly, fixture group 240A and 240B also can be made to be connected to Support Position 230A and 230B all movably.
In order to reduce the aperture of detection ring that can obtain further, Support Position and fixture all can also be divided into three groups, four groups or more groups.When needing to reduce the aperture of detection ring, the fixture being in corresponding position in every group can be made to move to extended position.For example, when Support Position and fixture being all divided into three groups, first in every group on (or counterclockwise) direction clockwise or second or the 3rd fixture can be made to move to extended position, to form the detection ring of smaller aperture due.That is, fixture is operated every two.Like this, the detection ring that aperture is 1/3 of foramen primum footpath (herein and hereinafter, foramen primum footpath all refers to the aperture of the test chamber that fixture is formed when being all in punctured position or detection ring) can be formed.By that analogy, when Support Position and fixture being all divided into four groups, the detection ring that aperture is 1/4 of foramen primum footpath can be obtained; When Support Position and fixture being all divided into five groups, the detection ring that aperture is 1/5 of foramen primum footpath can be obtained; ..
Can find out from the embodiment shown by Fig. 2 A-2B, when a part of fixture, such as, when fixture 240A is in extended position to form relatively little the second detector retainer ring in aperture, the detector 250B on fixture 240B is blocked, and therefore cannot collect optical signal.Like this, the waste of a part of detector resource is caused.In order to solve this problem, provide following preferred embodiment.Fig. 3 A-3H is the schematic diagram being in different conditions according to the support unit of one group of preferred embodiment of the present invention, and wherein Fig. 3 A-3D shows fixture and is in punctured position, and Fig. 3 E-3H shows fixture is in extended position.
Supportive body 310A in Fig. 3 A-3H is substantially identical with the supportive body 210 shown by 310B and Fig. 2 A-2B, for simplicity, will no longer describe in further detail here.Difference is: when fixture is in punctured position, and the fixture on multiple support units that the axis along spatial accommodation can be made to be arranged side by side forms the first detector retainer ring.In this particular embodiment, the fixture 340A on supportive body 310A can be made to arrange with keeping at a certain distance away, this distance allows to place the fixture 340B on other supportive body 310B.Axially be arranged side by side support unit 300A and 300B time, fixture 340A and the 340B on it intercouples, and can form the first detector retainer ring.As shown in Fig. 3 C-3D, detector 350A and the 350B composition that fixture 340A and 340B fixes respectively has the detection ring of larger aperture.Support unit 300A and 300B can have identical structure, just when building transmitting imaging device, support unit 300A and 300B relative to each other being rotated an angle to fixture 340A and 340B can be made to intercouple.But, in the preferred embodiment illustrated in the drawings, support unit 300A and 300B of two types can be provided, the difference between them be fixture 340A and 340B stagger certain angle arrange.
In order to reduce the aperture of detection ring, can as shown in Fig. 3 E-3H by fixture 340A and 340B respectively radially direction move to extended position place, to form the second detector retainer ring with Second bobbin diameter respectively.Like this, detector on fixture 340A defines the detection ring with smaller aperture due, and the detector on fixture 340B defines the other detection ring with smaller aperture due, this aperture is approximately the half in the aperture of the detection ring formed when fixture 340A and 340B is all in punctured position.In the case, axially be arranged side by side support unit 300A and 300B time, as shown in Fig. 3 G-3H, the aperture of detection ring is not only made to be decreased to the half in foramen primum footpath, and when being in punctured position with fixture 340A and 340B compared with, also make the axial length of detection space add one times.Depend on geometrical efficiency due to detection sensitivity and intrinsicly meet event detection efficiency, wherein geometrical efficiency depends on the solid space angle that detector module is surrounded.Therefore, when the aperture of detection ring reduces half and axial length doubles, solid space angle about increases to original 4 times, thus the detection sensitivity of transmitting imaging device is mentioned to original 4 times.Further, detector 350A and 350B on support unit 300A and 300B is fully used.
Embodiment shown in Fig. 3 A-3H fixture only illustrated on employing two support units forms the situation of the first detector retainer ring, and this inventive principle can also be applied to the situation adopting the fixture on three or more support units to form the first detector retainer ring.Particularly, the multiple Support Positions on each support unit can be made to be set to: when predetermined quantity (except two, also such as three or more) support unit is when being arranged side by side along the axis of spatial accommodation, multiple Support Positions in different supporting unit can circumferentially be arranged alternately in direction with mutually staggering, and make the Support Position in different supporting unit alternately can form described first detector retainer ring.When the fixture on each support unit is moved to extended position, the aperture of the detection ring of formation will be reduced to 1/3,1/4 of foramen primum footpath respectively ..., correspondingly, detection sensitivity will increase to original 9 times, 16 times ...
See Fig. 4, it illustrates the embodiment that the fixture 440A on four support units 400A, 400B, 400C and 400D, 440B, 440C and 440D form the first detector retainer ring jointly.In this embodiment, predetermined quantity is four.For arranging fixture 440A, the Support Position of 440B, 440C and 440D circumferentially staggers mutually, alternately forms the first detector retainer ring to make the fixture 440A on four support units, 440B, 440C and 440D." be arranged alternately " and refer to that fixture 440A, 440B, 440C and 440D can both occur once in each cycle.But in each cycle, the distributing order of fixture 440A, 440B, 440C and 440D can be identical, also can be different.Preferably, multiple Support Position is set to arrange according to identical sequence alternate when the support unit (such as 400A, 400B, 400C and 400D) of predetermined quantity is arranged side by side vertically.That is, in each cycle, the Support Position on same support unit is all positioned at identical or corresponding position.In the embodiment illustrated in figure 4, namely according to 440A, 440B, 440C, 440D; 440A, 440B, 440C, 440D; Order arrangement.
Be similar to mentioned above, four support units 400A, 400B, 400C and 400D can have identical structure, just build launch imaging system time, the object making four support units 400A, 400B, 400C and 400D circumferentially rotate different angles respectively mutually to stagger to reach, be alternately arranged.Alternatively, support unit 400A, 400B, 400C and 400D of Four types can also be provided, the difference between them is for making fixture 440A, staggering in the Support Position of 440B, 440C and 440D, certain angle is arranged.
When the fixture 440A on each support unit 400A, 400B, 400C and 400D, 440B, 440C and 440D are moved to extended position, the aperture of the detection ring of formation will be reduced to original 1/4 ...And be equivalent in the axial direction define four detection rings, therefore axial length increases to original four times.Correspondingly, detection sensitivity will increase to original 16 times.
In another preferred embodiment, as indicated by figures 5 a-5b, fixture 540A and 540B can spaced apartly be arranged, and to make in the Support Position 530 of every predetermined quantity only corresponding Support Position place be connected with fixture 540A or 540B.In fig. 5, in every two Support Positions 530, only fixture 540A is set at Support Position place, namely, every a Support Position, a fixture 540A is set.In figure 5b, similar set-up mode is also adopted.Difference is: the locations complementary of fixture 540A and 540B, so that when support unit 500A and 500B is arranged side by side vertically, the fixture 540A and the 540B that are in punctured position alternately can form the first detector retainer ring.Like this, the supportive body 510 of support unit 500A and 500B can be set to have identical structure, as required, fixture 540A and 540B can be separately fixed at different Support Position 530 places.Therefore, do not need as in embodiment above the different types of supportive body 510 of making mentioned or supportive body 510 is relative to each other rotated when building and launching imaging device.But, supportive body 510 and fixture all can be made standard component, only assemble as required when building and launching imaging device.Like this, be all very favourable for manufacture, transport, storage etc.It should be noted that, in this embodiment, distinguishing fixture with A and B is wish clearly to show their differences in position, and not necessarily requires that fixture 540A and 540B has identical or different 26S Proteasome Structure and Function.
Similarly, the principle of this embodiment also can be applied to the situation forming a first detector retainer ring more than two support units.Although do not adopt accompanying drawing to carry out aid illustration, this principle can be extrapolated to the situation forming a first detector retainer ring more than two support units in conjunction with content disclosed above by those skilled in the art.In the case, the spaced apart setting of fixture, to make in the Support Position of every predetermined quantity only corresponding Support Position place be connected with fixture.Such as, every three, four, or more only have support place to be connected with fixture in Support Position.Preferably, in each cycle, the fixture on same support unit is all arranged on corresponding Support Position place.Like this, when fixture is in extended position, the fixture on same support unit can form the second detector retainer ring.As described above, only have support place to be connected with fixture in every three Support Positions, the aperture of the detection ring that the second detector retainer ring can be made to be formed is decreased to 1/3 of foramen primum footpath; Similarly, only have Support Position place to be connected with fixture in every four Support Positions, the aperture of the detection ring that the second detector retainer ring can be made to be formed is decreased to 1/4 of foramen primum footpath;Correspondingly, when the fixture on each support unit is moved to extended position, the axial length of the detection ring of formation will increase to original three times, four times respectively ..., thus detection sensitivity will approximately increase to original 9 times, 16 times ...
In above-described embodiment, all there is an extended position so that principle of the present invention to be described for fixture.Alternatively, fixture can also have multiple extended position.Multiple extended position is along the arranged radially in cylindrical aperture.When fixture is in extended position, the fixture be positioned on same supportive body can be made to form the second detector retainer ring; Or the fixture on multiple support units of being axially arranged side by side can also be made to form the second detector retainer ring.For example, as shown in Figure 6, fixture can have two extended positions, i.e. the first extended position P and the second extended position Q.Wherein, the distance of the first extended position P to the center O of spatial accommodation is less than the distance of the second extended position Q to center O.For simplicity, fixture and detector is eliminated in Fig. 6.When fixture moves to the first extended position P, detector fixed thereon can be made to form complete detection ring.In the case, the fixture on same supportive body 610 defines the second detector retainer ring.When fixture moves to the second extended position Q, because the distance of the second extended position Q to center O is comparatively large, the fixture on adjacent support unit is needed to come together fixed detector, to form complete detection ring.In the case, the fixture on adjacent supportive body together form the second detector retainer ring.Fixture on adjacent supportive body forms the situation of the second detector retainer ring jointly can with reference to Fig. 2 A, 3C and 4, and difference is, makes the fixture on adjacent supportive body all be in the second extended position Q.
In a preferred embodiment, the quantity forming the support unit of the first detector retainer ring when fixture can be in punctured position is set to close number (non-prime, except can by 1 with except itself dividing exactly in natural number, the number can also divided exactly by other number, such as 4,6,8,9,10 ...), to form the complication system of many extended positions.Now, the quantity of extended position can be set to u, and wherein u is the number not comprising the prime factor of 1 of this conjunction number.This u extended position is arranged along the radial direction of spatial accommodation, and each inverse that u extended position equals in u prime factor respectively to the distance at the center of spatial accommodation is multiplied by r, wherein r is fixture distance to the center of spatial accommodation when being in punctured position.
For example, when forming the first detector retainer ring by 6 support units, because the prime factor closing several 6 comprises 1,6,2 and 3, therefore u prime factor comprises 2,3 and 6, and u=3.These 3 extended positions are respectively r/2, r/3 and r/6 to the distance at the center of spatial accommodation.
Be similar in the embodiment shown in Fig. 5 A-5B, can in every 6 Support Positions only a corresponding position be connected with fixture, the first detector retainer ring can be formed with 6 support units like this.These 6 support units comprise: No. 1 support unit, and its first position in every 6 Support Positions is connected with fixture; No. 2 support units, its second position in every 6 Support Positions is connected with fixture; No. 3 support units, its 3rd position in every 6 Support Positions is connected with fixture; No. 4 support units, its 4th position in every 6 Support Positions is connected with fixture; No. 5 support units, its 5th position in every 6 Support Positions is connected with fixture; No. 6 support units, its 6th position in every 6 Support Positions is connected with fixture.When fixture is in punctured position, 1-6 support unit can form the first detector retainer ring.When fixture on each support unit is in the first extended position (Support Position that distance center is nearest) to form the second detector retainer ring, this first extended position equals r/6 to the distance of spatial accommodation.When fixture on each support unit is in the second extended position (distance to center is distal to the first extended position) to form the second detector retainer ring, every two support units (i.e. No. 1 and No. 4 support units, No. 2 and No. 5 support units and No. 3 and No. 6 support units) can form a second detector retainer ring respectively.Form three the second detector retainer rings altogether in this embodiment.This second extended position equals r/3 to the distance of spatial accommodation.When fixture on each support unit is in the 3rd extended position (distance to center is distal to the second extended position) to form the second detector retainer ring, every three support units (namely No. 1, No. 3 and No. 5 support units and No. 2, No. 4 and No. 6 support units) can form a second detector retainer ring respectively.When forming two the second detector retainer rings in this embodiment altogether, the 3rd extended position equals r/2 to the distance of spatial accommodation.
It should be noted that, on each support unit, the r of all directions is not necessarily completely equal, be such as in the embodiment in cylindroid space at spatial accommodation, extended position narrows down to original part and refers to and position relationship between same extended position in the radial direction and fixed position not relate to different position relationship in the radial direction.
Although above to arrange a fixture in the Support Position of every predetermined quantity to explain the complication system of above-mentioned many extended positions, the principle of the complication system of this many extended position can also be applied to support unit to be identical and to make by rotating to an angle the fixture on support unit intercouple in the embodiment of (such as Fig. 3 A-3H shown in).In this embodiment, still forming the first detector retainer ring for 6 support units, 2 or 3 or 6 support units can being made to form the second detector retainer ring by rotating different angles.Here will no longer describe in further detail it.
The complication system of above-mentioned many extended positions only forms the first detector retainer ring so that the principle of this system to be described for 6 support units, and conjunction number can be extended to other from 6 in conjunction with this description by those skilled in the art.
Obviously, the complication system of this many extended positions when the radial dimension of change second detector retainer ring, or needs rotary support unit and changes the distance between adjacent support unit; Or need the position relationship changing adjacent support unit, such as, in embodiment mentioned above No. 1 and No. 4 support units, No. 2 and No. 5 support units and No. 3 and No. 6 support units are formed respectively three the second detector retainer rings to change to No. 1, No. 3 and No. 5 support units and No. 2, No. 4 and No. 6 support units and form two the second detector retainer rings respectively, need to adjust the position relationship between support unit, to enable the support unit of the same second detector retainer ring of composition adjacent.Certainly, also can not adjust their position relationship, but the detector caused on part support ring is in not by the state used.But the benefit so arranged also can not be ignored, and its reason is, the radial dimension of the second detector retainer ring that can adjust as required, has more regulated value.
In a further preferred embodiment, the quantity forming the support unit of the first detector retainer ring when fixture can be in punctured position is set to 2
n, wherein n be more than or equal to 2 integer.In the case, extended position can be n, and n extended position is arranged along the radial direction of spatial accommodation.N extended position to the distance at the center of spatial accommodation equal respectively r/2, r/4 ... r/2
n, wherein r is fixture distance to the center of spatial accommodation when being in punctured position.Such as, n=2 as shown in Figure 6, namely the quantity of extended position is the situation of two, can form the first detector retainer ring when fixture is in punctured position with four support units.The distance of the first extended position P to center O can be r/4, and the distance of the second extended position Q to center O can be r/2.When fixture moves to the first extended position P, the fixture on same support unit can form the second detector retainer ring.When fixture moves to the second extended position Q, the fixture on two adjacent support units can form the second detector retainer ring.Like this, launch after imaging device having built, only need the distance axially between movable support unit can form the second detector retainer ring of different radial dimension, this for system reconstruction be more relatively easily.But, some restrictions can be subject in the radial dimension of the second detector retainer ring that can obtain.
Similarly, n can also equal 3,4,5 ...In conjunction with description above, those skilled in the art should be able to derive n=3,4,5 ... the concrete set-up mode of embodiment because for simplicity, herein will no longer to n=3,4,5 ... embodiment more specifically describe.
It should be noted that, in above-described various embodiment, preferably more than one for the quantity of the fixture of fixed detector on each support unit.Those skilled in the art can understand, when fixture on each support unit forms separately the second detector retainer ring, such as in PET equipment, it needs to detect the contrary gamma photons in a pair direction simultaneously, and the quantity of the fixture therefore on each support unit is at least two.Therefore, when adopting support unit provided by the invention to build PET equipment, those skilled in the art can expect arranging plural fixture on each support unit.
In a preferred embodiment, supportive body, such as 210,310A, 310B, 410,510 and 610 can have the platy structure of rectangle.In this embodiment, supportive body can be processed by aluminium sheet or steel plate.Rectangular shape is convenient to make, and is convenient to support unit to position according to predetermined orientation.And platy structure can reduce material consumption, weight reduction, be convenient to transport, this is external be arranged side by side vertically multiple support unit time can also avoid hindering mobile generation of support unit, make support unit have larger can axially movable scope.
When axially movable support unit, manually can carry, also can adopt auxiliary machinery.When adopting auxiliary machinery, preferably, supportive body is provided with guide through hole, such as, guide through hole 260 shown in Fig. 2 A-2B, this guide through hole 260 is for the movement of guide support unit along the axis of spatial accommodation.
On the other hand, the present invention also provides a kind of fastening for launching imaging device.Return see Fig. 1, this fastening comprises multiple support unit 111,112,113 and 114.Multiple support unit 111,112,113 and 114 can be mentioned above any one or multiple.Multiple support unit 111,112,113 and 114 is arranged side by side along the axis of spatial accommodation, and multiple spatial accommodation defines the container cavity for holding detector and object to be detected.Detector is in the fixture of spatial accommodation internal fixtion to support unit 111,112,113 and 114, and the space surrounded by detector is the test chamber for holding object to be detected.According to as described above, because fixture can move diametrically, the aperture of the test chamber therefore formed can regulate, and therefore goes for the object to be detected of different volumes.The all parts comprised for support unit with reference to the description of part above, can repeat no more here.
In addition, fastening 100 also comprises guiding device 120, and guiding device 120 is for making axially movable along spatial accommodation of multiple support unit 111,112,113 and 114.In addition, guiding device 120 also may play the effect positioned along the axis of spatial accommodation multiple support unit 111,112,113 and 114 to a certain extent.
In a preferred embodiment, guiding device 120 comprises the axis guide rail 121 arranged and the guide through hole 122 be arranged on the supportive body of support unit 111,112,113 and 114 along spatial accommodation.Guide through hole 122 is located on guide rail 121, moves along guide rail 121 with guide support unit 111,112,113 and 114.Guide through hole 122 is substantially identical with guide through hole 260 mentioned above.Further preferably, when supportive body has the platy structure of rectangle, guiding device 120 comprises four guide rails 121 and is arranged on four guide through hole 122 at four drift angle places of each supportive body, slides reposefully along guide rail 121 with guide support unit 111,112,113 and 114.
In a further advantageous embodiment, fastening 100 also comprises the elastic buffering mechanism 130 be arranged between adjacent support unit.This elastic buffering mechanism 130 is for applying equal elastic force to the support unit at its two ends.Like this, can unbalance stress be prevented, and the effect of the distance regulated between support unit can be played.In addition, the firmly excessive damage causing support unit 111,112,113 and 114 in movable support unit 111,112,113 and 114 process can also be avoided.Exemplarily, elastic buffering mechanism 130 can be compressible cylinder, spring, sponge, compressible polymeric material or compressible rubber etc.In addition, fastening 100 also comprises positioner (not shown), and this positioner is mainly used in the axially positioning support element 111,112,113 and 114 at spatial accommodation.Various types of positioners that positioner can be known in the art, such as bolt etc.
According to another aspect, also provide a kind of and launch imaging device.This transmitting imaging device can comprise any one fastening 100 and detector as above.Detector can at container cavity internal fixtion in the fixture of fastening 100.
Now, for radical length and all adjustable fastening of axial length, a kind of control method of preferred transmitting imaging device is described.As shown in Fig. 7-Figure 10 B, the fixture on every two support units 111 and 112 and 113 and 114 can form the first detector retainer ring.There is shown the situation of formation two the first detector retainer rings, certainly, as required, more or less support unit can also be set.When the test chamber needing formation aperture larger, first support unit 111,112,113 and 114, elastic buffering mechanism 130 are installed together by guider 120, as shown in Figure 7.In the guide through hole that guider comprises guide rail 120 and is arranged on, and when elastic buffering mechanism 130 is spring, guide rail 120 can be made to pass the guide through hole of elastic buffering mechanism 130 and support unit.And fixture can move to punctured position before or after support unit being mounted to guider 120.Similarly, detector can be fixed in fixture after or before fixture moves to punctured position.Then, from both sides, fastening is exerted a force, be coupled to make the fixture on support unit 111 and 112, fixture coupling on support unit 113 and 114, and make the detector after coupling also can mutually press close to, as shown in figures 8 a-8b, now elastic buffering mechanism 130 is in compressive state.Material is thus formed and there is relatively wide-aperture test chamber.
When the test chamber needing formation aperture less, the power being applied to the transmitting imaging device of Fig. 8 A-8B is removed, and make adjacent support unit separately, then the fixture on each support unit 111,112,113 and 114 is moved to extended position, to form the second detector retainer ring, as shown in Figure 9.Finally, again exert a force from the both sides of fastening, the detector on the second adjacent detector retainer ring is pressed close to, mutually as shown in Figure 10 A-10B.Material is thus formed the test chamber with relatively small-bore.
Adopt the transmitting imaging device that support unit provided by the invention is built, the at least radical length of test chamber can be made adjustable, therefore can be formed as required and there is relatively wide-aperture test chamber, such as adult, or form the test chamber with relatively small-bore, such as, for child or toy, therefore compared with existing transmitting imaging device, relatively large solid space angle can be obtained, and then effectively improve the detection sensitivity of launching imaging device.
The present invention is illustrated by above-described embodiment, but should be understood that, above-described embodiment just for the object of illustrating and illustrate, and is not intended to the present invention to be limited in described scope of embodiments.In addition it will be appreciated by persons skilled in the art that the present invention is not limited to above-described embodiment, more kinds of variants and modifications can also be made according to instruction of the present invention, within these variants and modifications all drop on the present invention's scope required for protection.Protection scope of the present invention defined by the appended claims and equivalent scope thereof.
Claims (16)
1. for launching a support unit for imaging device, it is characterized in that, comprising:
Supportive body, is provided with the spatial accommodation running through described supportive body in it, described supportive body comprises multiple Support Positions that the circumference along described spatial accommodation distributes;
Multiple fixture, it is connected to the place at least partially in described multiple Support Position, the radial direction at least partially along described spatial accommodation in multiple fixture is removable between punctured position and extended position, and described fixture is used for the detector of fixed transmission imaging device
For the formation of the first detector retainer ring with the first diameter when wherein said fixture is in described punctured position, and for the formation of the second detector retainer ring with Second bobbin diameter when being in described extended position, wherein said first diameter is greater than described Second bobbin diameter.
2. support unit as claimed in claim 1, it is characterized in that, when described fixture is in described punctured position, the described fixture on the multiple described support unit that the axis along described spatial accommodation can be made to be arranged side by side forms described first detector retainer ring.
3. support unit as claimed in claim 1, is characterized in that, when described fixture is in described extended position, the described fixture be positioned on same supportive body can be made to form described second detector retainer ring; Or the described fixture on the multiple described support unit making the axis along described spatial accommodation be arranged side by side forms described second detector retainer ring.
4. support unit as claimed in claim 1, is characterized in that, the spaced apart setting of described fixture, to make in the Support Position of every predetermined quantity only corresponding Support Position place be connected with described fixture.
5. support unit as claimed in claim 1, it is characterized in that, described multiple Support Position is set to when the described support unit of predetermined quantity is arranged side by side along the axis of described spatial accommodation, the Support Position on different support units is arranged alternately with mutually staggering along described circumferential direction, makes the described fixture on the described support unit of described predetermined quantity alternately can form described first detector retainer ring.
6. support unit as claimed in claim 5, it is characterized in that, described multiple Support Position is set to make the Support Position on different support units arrange according to identical sequence alternate when the described support unit of described predetermined quantity is arranged side by side along described axis.
7. the support unit as described in claim 4 or 5, it is characterized in that, described predetermined quantity is for closing number, described extended position is u, wherein u is the number not comprising the prime factor of 1 of described conjunction number, the individual described extended position of u is arranged along the radial direction of described spatial accommodation, and each inverse that u described extended position equals in u prime factor respectively to the distance at the center of described spatial accommodation is multiplied by r, wherein r is described fixture distance to the center of described spatial accommodation when being in described punctured position.
8. support unit as claimed in claim 7, it is characterized in that, described predetermined quantity is 2
n, wherein n be more than or equal to 2 integer, described extended position is n, and n described extended position to the distance at the center of described spatial accommodation equal respectively r/2, r/4 ... r/2
n.
9. support unit as claimed in claim 1, it is characterized in that, described supportive body has the platy structure of rectangle.
10. support unit as claimed in claim 1, it is characterized in that, described supportive body is provided with guide through hole, described guide through hole is for guiding described support unit along the movement of the axis of described spatial accommodation.
11. 1 kinds for launching the fastening of imaging device, is characterized in that, comprising:
Multiple support unit as claimed in any one of claims 1-9 wherein, multiple described support unit is arranged side by side along the axis of described spatial accommodation, and multiple described spatial accommodation forms the container cavity for holding detector and object to be detected.
12. fastenings as claimed in claim 11, it is characterized in that, described fastening also comprises guiding device, and described guiding device is for making axially movable along described spatial accommodation of multiple described support unit.
13. fastenings as claimed in claim 12, it is characterized in that, described guiding device comprises the axis guide rail arranged and the guide through hole be arranged on described supportive body along described spatial accommodation, described guide through hole is located on described guide rail, moves along described guide rail to guide described support unit.
14. fastenings as claimed in claim 13, it is characterized in that, when described supportive body has the platy structure of rectangle, described guiding device comprises four described guide rails and is arranged on four described guide through hole at four drift angle places of each described supportive body.
15. fastenings as claimed in claim 12, it is characterized in that, described fastening also comprises:
Elastic buffering mechanism, described elastic buffering mechanism is arranged between adjacent described support unit, for applying equal elastic force to the described support unit at its two ends.
Positioner, described positioner is used for the described support unit in axially location at described spatial accommodation.
16. 1 kinds of transmitting imaging devices, is characterized in that, comprising:
Fastening according to any one of claim 11-15; And
Detector, its at described container cavity internal fixtion in described fixture.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631706.8A CN104473657B (en) | 2014-11-11 | 2014-11-11 | Support unit, support equipment and the transmitting imaging device using this support equipment |
| PCT/CN2015/093966 WO2016074590A1 (en) | 2014-11-11 | 2015-11-06 | Support unit, support device, and emission tomography device using support device |
| US15/525,947 US10188357B2 (en) | 2014-11-11 | 2015-11-06 | Support unit, support device, and emission tomography device using support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631706.8A CN104473657B (en) | 2014-11-11 | 2014-11-11 | Support unit, support equipment and the transmitting imaging device using this support equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104473657A true CN104473657A (en) | 2015-04-01 |
| CN104473657B CN104473657B (en) | 2017-03-01 |
Family
ID=52748367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410631706.8A Active CN104473657B (en) | 2014-11-11 | 2014-11-11 | Support unit, support equipment and the transmitting imaging device using this support equipment |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10188357B2 (en) |
| CN (1) | CN104473657B (en) |
| WO (1) | WO2016074590A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105342632A (en) * | 2015-09-24 | 2016-02-24 | 华中科技大学 | Device for adjusting diameter of detector ring of PET (positron emission tomography) system |
| CN105559811A (en) * | 2015-12-14 | 2016-05-11 | 华中科技大学 | Emission imaging device with polyhedral cavity structure |
| WO2016074590A1 (en) * | 2014-11-11 | 2016-05-19 | 东莞南方医大松山湖科技园有限公司 | Support unit, support device, and emission tomography device using support device |
| CN107007296A (en) * | 2017-05-13 | 2017-08-04 | 上海联影医疗科技有限公司 | PET pallets and PET imaging devices |
| CN107920794A (en) * | 2015-08-31 | 2018-04-17 | 通用电气公司 | Detector arm system and sub-assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111465349A (en) | 2017-12-01 | 2020-07-28 | 皇家飞利浦有限公司 | Positron Emission Tomography (PET) system with switchable mission-optimized geometry |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209700A (en) * | 1977-12-30 | 1980-06-24 | Union Carbide Corporation | Nuclear transverse sectional brain function imager |
| JPH11211833A (en) * | 1998-01-30 | 1999-08-06 | Toshiba Corp | Nuclear medicine diagnostic device |
| CN1643619A (en) * | 2002-03-18 | 2005-07-20 | 西门子公司 | Detector for x-ray computer tomography |
| CN1886674A (en) * | 2003-11-28 | 2006-12-27 | 皇家飞利浦电子股份有限公司 | Radiation detector module |
| US20070007454A1 (en) * | 2001-05-09 | 2007-01-11 | Stoddart Hugh A | High resolution photon emission computed tomographic imaging tool |
| CN101120876A (en) * | 2006-08-08 | 2008-02-13 | 西门子公司 | Detecting unit for mounting in cylinder type patient container cavity of magnetic resonance equipment |
| US20080230704A1 (en) * | 2005-02-25 | 2008-09-25 | Farhad Daghighian | Novel positron emission detectors and configurations |
| CN101990643A (en) * | 2008-04-10 | 2011-03-23 | 皇家飞利浦电子股份有限公司 | Modular multi-geometry pet system |
| CN103479372A (en) * | 2013-08-19 | 2014-01-01 | 许剑锋 | Detector assembly device, supporting ring and emission tomography equipment |
| CN103479378A (en) * | 2013-09-06 | 2014-01-01 | 沈阳东软医疗系统有限公司 | PET (positron emission tomography)-CT (computed tomography) detector and rod source device thereof |
| CN105342632A (en) * | 2015-09-24 | 2016-02-24 | 华中科技大学 | Device for adjusting diameter of detector ring of PET (positron emission tomography) system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075527A (en) * | 1976-09-27 | 1978-02-21 | General Electric Company | X-ray detector |
| JPH09313475A (en) | 1996-05-30 | 1997-12-09 | Hitachi Medical Corp | Image diagnostic device for medical application |
| US7262415B2 (en) * | 2002-06-02 | 2007-08-28 | Crosetto Dario B | Gantry for geometrically configurable and non-configurable positron emission tomography detector arrays |
| DE102005040107B3 (en) | 2005-08-24 | 2007-05-31 | Siemens Ag | Combined PET-MRI device and method for the simultaneous capture of PET images and MR images |
| JP4885529B2 (en) * | 2005-12-08 | 2012-02-29 | 住友重機械工業株式会社 | Radiation detection unit and radiation inspection apparatus |
| JP5751944B2 (en) | 2010-06-16 | 2015-07-22 | 株式会社東芝 | TOF-PET device, detector ring, and detector |
| US20130006091A1 (en) | 2011-07-01 | 2013-01-03 | General Electric Company | System and method for a combined mri-pet imager |
| CN104473657B (en) | 2014-11-11 | 2017-03-01 | 东莞南方医大松山湖科技园有限公司 | Support unit, support equipment and the transmitting imaging device using this support equipment |
-
2014
- 2014-11-11 CN CN201410631706.8A patent/CN104473657B/en active Active
-
2015
- 2015-11-06 US US15/525,947 patent/US10188357B2/en active Active
- 2015-11-06 WO PCT/CN2015/093966 patent/WO2016074590A1/en active Application Filing
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209700A (en) * | 1977-12-30 | 1980-06-24 | Union Carbide Corporation | Nuclear transverse sectional brain function imager |
| JPH11211833A (en) * | 1998-01-30 | 1999-08-06 | Toshiba Corp | Nuclear medicine diagnostic device |
| US20070007454A1 (en) * | 2001-05-09 | 2007-01-11 | Stoddart Hugh A | High resolution photon emission computed tomographic imaging tool |
| CN1643619A (en) * | 2002-03-18 | 2005-07-20 | 西门子公司 | Detector for x-ray computer tomography |
| CN1886674A (en) * | 2003-11-28 | 2006-12-27 | 皇家飞利浦电子股份有限公司 | Radiation detector module |
| US20080230704A1 (en) * | 2005-02-25 | 2008-09-25 | Farhad Daghighian | Novel positron emission detectors and configurations |
| CN101120876A (en) * | 2006-08-08 | 2008-02-13 | 西门子公司 | Detecting unit for mounting in cylinder type patient container cavity of magnetic resonance equipment |
| CN101990643A (en) * | 2008-04-10 | 2011-03-23 | 皇家飞利浦电子股份有限公司 | Modular multi-geometry pet system |
| CN103479372A (en) * | 2013-08-19 | 2014-01-01 | 许剑锋 | Detector assembly device, supporting ring and emission tomography equipment |
| CN103479378A (en) * | 2013-09-06 | 2014-01-01 | 沈阳东软医疗系统有限公司 | PET (positron emission tomography)-CT (computed tomography) detector and rod source device thereof |
| CN105342632A (en) * | 2015-09-24 | 2016-02-24 | 华中科技大学 | Device for adjusting diameter of detector ring of PET (positron emission tomography) system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016074590A1 (en) * | 2014-11-11 | 2016-05-19 | 东莞南方医大松山湖科技园有限公司 | Support unit, support device, and emission tomography device using support device |
| US10188357B2 (en) | 2014-11-11 | 2019-01-29 | Dongguan Songshan Lake Southern Medical University Sci. & Tech. Park Co., Ltd. | Support unit, support device, and emission tomography device using support device |
| CN107920794A (en) * | 2015-08-31 | 2018-04-17 | 通用电气公司 | Detector arm system and sub-assembly |
| CN105342632A (en) * | 2015-09-24 | 2016-02-24 | 华中科技大学 | Device for adjusting diameter of detector ring of PET (positron emission tomography) system |
| CN105342632B (en) * | 2015-09-24 | 2018-03-09 | 华中科技大学 | A kind of PET system detector rings aperture adjusting device |
| CN105559811A (en) * | 2015-12-14 | 2016-05-11 | 华中科技大学 | Emission imaging device with polyhedral cavity structure |
| CN107007296A (en) * | 2017-05-13 | 2017-08-04 | 上海联影医疗科技有限公司 | PET pallets and PET imaging devices |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104473657B (en) | 2017-03-01 |
| WO2016074590A1 (en) | 2016-05-19 |
| US10188357B2 (en) | 2019-01-29 |
| US20170303871A1 (en) | 2017-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104473657A (en) | Supporting unit, supporting device and emission imaging device with supporting device | |
| España et al. | DigiPET: sub-millimeter spatial resolution small-animal PET imaging using thin monolithic scintillators | |
| US7339174B1 (en) | Combined slit/pinhole collimator method and system | |
| CN116035608A (en) | Imaging system | |
| US9372267B2 (en) | Apparatus and methods for photosensor quadrant sharing | |
| WO2009125309A3 (en) | Modular multi-geometry pet system | |
| DE602006012820D1 (en) | THREE-DIMENSIONAL TIME-OF-FLIGHT PET WITH GREAT ANGLE AND DISC REBINNING | |
| JP2012098273A (en) | Gamma ray detection system, positron emission tomography (pet) system and non-temporary computer readable storage medium | |
| WO2007120643A3 (en) | Single-photon emission computed tomography (spect) using helical scanninig with multiplexing multi-pinhole apertures | |
| KR101123951B1 (en) | Transformable adaptive positron emission tomography system and imaging method using the same | |
| CN104382609A (en) | Collimator, scanning device and using method of scanning device | |
| CN101568854A (en) | Detection unit for mammography and nuclear medicine diagnosis apparatus for mammography provided therewith | |
| KR20110130954A (en) | Pet device | |
| CN107080551B (en) | Three-dimensional heterogeneous PET system | |
| ITRM20110543A1 (en) | DIAGNOSTIC DEVICE FOR MORFO-FUNCTIONAL INVESTIGATIONS | |
| WO2019057160A1 (en) | Position adjustment unit for detector ring of pet system and emission tomography device | |
| US10813606B2 (en) | Multi-axially variable detection module of pet apparatus | |
| CN109009198A (en) | Multi-mode imaging system, method and storage medium | |
| Jung et al. | Performance evaluation of neuro-PET using silicon photomultipliers | |
| Baghaei et al. | Breast cancer imaging studies with a variable field of view PET camera | |
| CN104027129A (en) | SPECT (single-photon emission computed tomography) imaging method based on ordered subset algorithm | |
| CN209808374U (en) | Multi-functional many pinhole collimater from conversion | |
| US20100308226A1 (en) | Collimator and related methods | |
| Ahmed et al. | Investigation of spatial resolution improvement by use of a mouth-insert detector in the helmet PET scanner | |
| WO2009128131A1 (en) | Pet device and method for determining arrangement of detectors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |